Purchase Offer Gb 20cr Steel Bars Polishing Preparation Process - China

GB 20Cr steel bar polishing surface pretreatment

Remove oil stains: Use alkaline cleaning agent (such as sodium hydroxide solution) or special metal degreasing agent to remove stamping oil, cutting fluid, fingerprints and other oil stains on the surface of GB 20Cr steel bars by soaking, spraying or ultrasonic cleaning.

Residual oil stains will cause uneven adhesion of abrasives during polishing, affecting the finish.

Remove oxide scale and burrs: For GB 20Cr steel bars after hot rolling or welding, it is necessary to first remove the oxide scale on the surface of GB 20Cr steel bars by pickling (such as nitric acid + hydrofluoric acid mixed solution); for workpieces after stamping and cutting, it is necessary to use sandpaper (80-120 mesh) or grinding wheel to grind off burrs and flash to avoid scratching the surface during polishing.

Water washing and drying: After pretreatment, rinse thoroughly with clean water to remove residual cleaning agent or acid, and then dry with hot air or dry naturally to prevent residual moisture from causing surface rust.

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Company Contact:

• Posted By: Dongguan Songshun Mould Steel Co., Ltd.

• Phone: 076985475596

• Address: 1st Floor, No. 1, Dongda Fourth Street, Shatou Community, Chang'an Town, Dongguan , Guangdong , China

• Email:

• Website: https://songshunsteel.com/

• Business Description: Established in 2009,Songshun Steel supplies a wide range of carbon, alloy and tool steel products, including high speed tool steel, cold work tool steel, hot work tool steel, plastic mould steel, engineering steel and machine structural steel etc.
  
  After more than 10 years development and growing, Songshun Steel becomes one comprehensive special steel factory, stockist and exporter.
  
  Combined with experienced exporting team and professional technical knowledge, Songshun Steel offers both technical advice and support, as well as global professional steel solution and service.
  
  Due to satisfactory reliable quality and professional service, Songshun expands our market worldwide, such as Colombia, Chile, Spain, Turkey, Iran, Vietnam, Malaysia ,UAE, Canada, Brazil, Mexico and so on.
  
  Songshun specialized in Special Steel for almost 20 years.
  
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